Q: What are the prime factors of the number 850,416?

 A: 2, 3, 7, 2531

Why are those the prime factors of the number 850,416?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 850,416

850,416
Factor Arrows
2425,208
Factor Arrows
2212,604
Factor Arrows
2106,302
Factor Arrows
253,151
Factor Arrows
317,717
Factor Arrows
72,531

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 2,531 = 850,416

This can also be written as 24 x 31 x 71 x 2,5311 = 850,416

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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